Skarma is an abomination. While I do find it fun to play her, I don't consider her viable in any way. Old Karma had a better kit that only needed some minor tuning to make it viable.
Old Karma's kit emphasized 'karma' and duality. If you damaged her, she would hurt you back even more. Her Q did Damage/Heal. Her W was a Slow/Speed. Her E was a Shield/Damage. Even without Mantra's, her abilities did what they needed to do (W was undertuned though).
Karma's old kit should be brought back and polished.
This is my take on Skarma's current abilities. Her kit is not cohesive, the abilities fight each other, and she is like a Mordekaiser that deals no damage. And Riot never fixed any of the issues Karma had such as long CDs, needing too many stats at once, and poor CC.
Passive: This passive suffers from Shyvana and Renekton Passive syndrome: it's not a 'real' passive and should be moved into her kit and be given a new passive.
Q: This is Damage + a Slow ranged Poke. Mant…